Supplier Page from Thermo Fisher Scientific for 1-Methyl-1H-pyrazole-4-boronic acid pinacol ester, 97%
4-Ethylaniline, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl L(-)-lactate, 97% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific